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应(Ying)用(Yong)案(An)例(Li)

首(Shou)页(Ye)      应(Ying)用(Yong)案(An)例(Li)      氨(An)气(Qi) NH      Picarro G2103((?)ES&T 水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu)的(De)气(Qi)相(Xiang)—(?)气(Qi)溶(Rong)胶(Jiao)相(Xiang)分(Fen)配(Pei):(?)NH 对(Dui) SOA 形(Xing)成(Cheng)的(De)促(Cu)进(Jin)作(Zuo)用(Yong))(?)

Picarro G2103((?)ES&T 水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu)的(De)气(Qi)相(Xiang)—(?)气(Qi)溶(Rong)胶(Jiao)相(Xiang)分(Fen)配(Pei):(?)NH 对(Dui) SOA 形(Xing)成(Cheng)的(De)促(Cu)进(Jin)作(Zuo)用(Yong))(?)

发(Fa)表(Biao)时(Shi)间(Jian):(?)2024-04-17浏(Liu)览(Lan)量(Liang):(?)322

点(Dian)击(Ji)蓝(Lan)字(Zi)

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文(Wen)章(Zhang)链(Lian)接(Jie)

https://doi.org/10.1021/acs.est.1c06855

 

关(Guan)键(Jian)词(Ci)解(Jie)释(Shi)

水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu):(?)water-soluble organic compounds (WSOC)

气(Qi)相(Xiang)水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu):(?)gas-phase WSOC (WSOCg)

气(Qi)溶(Rong)胶(Jiao)相(Xiang)水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu):(?)aerosol-phase WSOC (WSOCp)

二(?)次(Ci)有(You)机(Ji)气(Qi)溶(Rong)胶(Jiao):(?)secondary organic aerosols (SOA)

分(Fen)配(Pei)因(Yin)子(Zi)或(Huo)分(Fen)配(Pei)系(Xi)数(Shu):(?)partitioning coefficient (Fp = WSOCp/(WSOCp + WSOCg))

气(Qi)溶(Rong)胶(Jiao)液(Ye)态(Tai)水(Shui):(?)aerosol liquid water (ALW)

 

 

01

研(Yan)究(Jiu)背(Bei)景(Jing)

 

水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu)作(Zuo)为(Wei)有(You)机(Ji)气(Qi)溶(Rong)胶(Jiao)的(De)重(Zhong)要(Yao)组(Zu)分(Fen),(?)其(Qi)向(Xiang)云(Yun)、(?)雾(Wu)以(Yi)及(Ji)气(Qi)溶(Rong)胶(Jiao)相(Xiang)的(De)气(Qi)固(Gu)分(Fen)配(Pei)是(Shi)形(Xing)成(Cheng)大(Da)气(Qi)中(Zhong)二(?)次(Ci)有(You)机(Ji)气(Qi)溶(Rong)胶(Jiao) (SOA) 的(De)重(Zhong)要(Yao)途(Tu)径(Jing)。(?)WSOC种(Zhong)类(Lei)繁(Fan)多(Duo)且(Qie)复(Fu)杂(Za),(?)传(Chuan)统(Tong)研(Yan)究(Jiu)方(Fang)法(Fa)主(Zhu)要(Yao)是(Shi)滤(Lu)膜(Mo)采(Cai)样(Yang)结(Jie)合(He)离(Li)线(Xian)分(Fen)析(Xi),(?)难(Nan)以(Yi)开(Kai)展(Zhan)气(Qi)固(Gu)两(Liang)相(Xiang)高(Gao)时(Shi)间(Jian)分(Fen)辨(Bian)率(Lu)和(He)长(Chang)时(Shi)间(Jian)序(Xu)列(Lie)观(Guan)测(Ce)研(Yan)究(Jiu)。(?)为(Wei)数(Shu)不(Bu)多(Duo)的(De)外(Wai)场(Chang)观(Guan)测(Ce)研(Yan)究(Jiu)表(Biao)明(Ming),(?)WSOC 的(De)气(Qi)固(Gu)分(Fen)配(Pei)行(Xing)为(Wei)取(Qu)决(Jue)于(Yu)诸(Zhu)多(Duo)因(Yin)素(Su),(?)例(Li)如(Ru)气(Qi)象(Xiang)参(Can)数(Shu)、(?)气(Qi)态(Tai)化(Hua)合(He)物(Wu)种(Zhong)类(Lei)和(He)颗(Ke)粒(Li)相(Xiang)特(Te)性(Xing)等(Deng)。(?)

 

由(You)于(Yu)中(Zhong)国(Guo)农(Nong)业(Ye)源(Yuan)与(Yu)非(Fei)农(Nong)业(Ye)源(Yuan)的(De)氨(An)气(Qi)排(Pai)放(Fang)较(Jiao)强(Qiang),(?)并(Bing)且(Qie)相(Xiang)较(Jiao)于(Yu)欧(Ou)美(Mei)等(Deng)发(Fa)达(Da)国(Guo)家(Jia),(?)中(Zhong)国(Guo)大(Da)气(Qi)中(Zhong)的(De)硫(Liu)酸(Suan)盐(Yan)和(He)硝(Xiao)酸(Suan)盐(Yan)浓(Nong)度(Du)更(Geng)高(Gao)((?)尤(You)其(Qi)在(Zai)冬(Dong)季(Ji)雾(Wu)霾(Mai)期(Qi)间(Jian))(?),(?)使(Shi)得(De)大(Da)气(Qi)中(Zhong)气(Qi)溶(Rong)胶(Jiao)液(Ye)态(Tai)水(Shui)含(Han)量(Liang) (ALWC) 和(He)气(Qi)溶(Rong)胶(Jiao)pH升(Sheng)高(Gao),(?)这(Zhe)意(Yi)味(Wei)着(Zhuo)污(Wu)染(Ran)物(Wu)的(De)颗(Ke)粒(Li)相(Xiang)吸(Xi)收(Shou)在(Zai)中(Zhong)国(Guo)可(Ke)能(Neng)更(Geng)为(Wei)显(Xian)著(Zhu)并(Bing)促(Cu)进(Jin)二(?)次(Ci)有(You)机(Ji)气(Qi)溶(Rong)胶(Jiao)的(De)形(Xing)成(Cheng)。(?)

 

因(Yin)此(Ci),(?)充(Chong)分(Fen)认(Ren)识(Shi)气(Qi)态(Tai)水(Shui)溶(Rong)性(Xing)有(You)机(Ji)物(Wu)的(De)时(Shi)空(Kong)分(Fen)布(Bu)特(Te)征(Zheng)及(Ji)其(Qi)气(Qi)固(Gu)相(Xiang)转(Zhuan)化(Hua)机(Ji)制(Zhi),(?)不(Bu)仅(Jin)对(Dui)厘(Li)清(Qing)SOA的(De)形(Xing)成(Cheng)机(Ji)制(Zhi)和(He)我(Wo)国(Guo)灰(Hui)霾(Mai)成(Cheng)因(Yin)具(Ju)有(You)重(Zhong)要(Yao)的(De)科(Ke)学(Xue)意(Yi)义(Yi),(?)同(Tong)时(Shi)也(Ye)能(Neng)为(Wei)控(Kong)制(Zhi)我(Wo)国(Guo)大(Da)气(Qi)污(Wu)染(Ran)和(He)制(Zhi)定(Ding)有(You)效(Xiao)治(Zhi)理(Li)措(Cuo)施(Shi)提(Ti)供(Gong)新(Xin)思(Si)路(Lu)。(?)本(Ben)研(Yan)究(Jiu)首(Shou)次(Ci)在(Zai)我(Wo)国(Guo)富(Fu)氨(An)大(Da)气(Qi)条(Tiao)件(Jian)下(Xia),(?)初(Chu)步(Bu)研(Yan)究(Jiu)WSOC气(Qi)固(Gu)分(Fen)配(Pei)特(Te)征(Zheng)及(Ji)其(Qi)影(Ying)响(Xiang)因(Yin)素(Su),(?)并(Bing)揭(Jie)示(Shi)了(Liao)NH3在(Zai)WSOC气(Qi)固(Gu)分(Fen)配(Pei)过(Guo)程(Cheng)的(De)关(Guan)键(Jian)作(Zuo)用(Yong)以(Yi)及(Ji)对(Dui)SOA形(Xing)成(Cheng)的(De)重(Zhong)要(Yao)影(Ying)响(Xiang)。(?)

 

 

02

观(Guan)测(Ce)实(Shi)验(Yan)

 

观(Guan)测(Ce)实(Shi)验(Yan)地(Di)点(Dian):(?)观(Guan)测(Ce)点(Dian)位(Wei)于(Yu)崇(Chong)明(Ming)岛(Dao)西(Xi)部(Bu)、(?)长(Chang)三(San)角(Jiao)城(Cheng)市(Shi)群(Qun)下(Xia)风(Feng)区(Qu)域(Yu)的(De)华(Hua)东(Dong)师(Shi)范(Fan)大(Da)学(Xue)长(Chang)江(Jiang)口(Kou)湿(Shi)地(Di)生(Sheng)态(Tai)系(Xi)统(Tong)野(Ye)外(Wai)研(Yan)究(Jiu)站(Zhan)((?)31°44′N,(?)121°13′E)(?),(?)观(Guan)测(Ce)点(Dian)周(Zhou)围(Wei)没(Mei)有(You)明(Ming)显(Xian)的(De)污(Wu)染(Ran)源(Yuan),(?)采(Cai)样(Yang)口(Kou)位(Wei)于(Yu)离(Li)地(Di)6m高(Gao)的(De)屋(Wu)顶(Ding)上(Shang)。(?)

 

NH3观(Guan)测(Ce):(?)使(Shi)用(Yong) Picarro G2103 (光(Guang)腔(Qiang)衰(Shuai)荡(Dang)光(Guang)谱(Pu) CRDS)(?)以(Yi) 1 秒(Miao)的(De)时(Shi)间(Jian)分(Fen)辨(Bian)率(Lu)进(Jin)行(Xing)测(Ce)量(Liang)。(?)

 

 

03

结(Jie)果(Guo)与(Yu)研(Yan)究(Jiu)意(Yi)义(Yi)

 

PM2.5 与(Yu)NH3:(?)上(Shang)海(Hai)崇(Chong)明(Ming)冬(Dong)季(Ji)PM2.5日(Ri)均(Jun)浓(Nong)度(Du)经(Jing)常(Chang)超(Chao)过(Guo)国(Guo)家(Jia)空(Kong)气(Qi)质(Zhi)量(Liang) I 级(Ji)标(Biao)准(Zhun) -35 μg m-3,(?)表(Biao)明(Ming)细(Xi)颗(Ke)粒(Li)物(Wu)污(Wu)染(Ran)依(Yi)然(Ran)严(Yan)重(Zhong)。(?)同(Tong)时(Shi),(?)时(Shi)间(Jian)序(Xu)列(Lie)图(Tu)显(Xian)示(Shi)氨(An)气(Qi)与(Yu)PM2.5的(De)时(Shi)间(Jian)变(Bian)化(Hua)趋(Qu)势(Shi)相(Xiang)似(Si),(?)表(Biao)明(Ming)细(Xi)颗(Ke)粒(Li)物(Wu)的(De)形(Xing)成(Cheng)可(Ke)能(Neng)与(Yu)氨(An)气(Qi)有(You)关(Guan)。(?)观(Guan)测(Ce)期(Qi)间(Jian),(?)NH3 平(Ping)均(Jun)浓(Nong)度(Du)为(Wei) 9.3 ± 4.0 μg m-3,(?)最(Zui)大(Da)值(Zhi)超(Chao)过(Guo) 20 μg m-3,(?)大(Da)约(Yue)是(Shi)美(Mei)国(Guo)东(Dong)南(Nan)部(Bu)农(Nong)村(Cun)地(Di)区(Qu)的(De) 10 倍(Bei),(?)表(Biao)明(Ming)长(Chang)三(San)角(Jiao)地(Di)区(Qu)的(De) NH3 污(Wu)染(Ran)严(Yan)重(Zhong)。(?)

 

相(Xiang)对(Dui)湿(Shi)度(Du)((?)RH)(?)与(Yu)WSOC气(Qi)固(Gu)分(Fen)配(Pei)((?)Fp)(?):(?)为(Wei)了(Liao)进(Jin)一(Yi)步(Bu)确(Que)定(Ding)影(Ying)响(Xiang) WSOC 气(Qi)固(Gu)分(Fen)配(Pei)过(Guo)程(Cheng)的(De)关(Guan)键(Jian)因(Yin)素(Su),(?)作(Zuo)者(Zhe)分(Fen)析(Xi)了(Liao) Fp 与(Yu)气(Qi)象(Xiang)条(Tiao)件(Jian)((?)即(Ji) RH 和(He)温(Wen)度(Du))(?)、(?)气(Qi)溶(Rong)胶(Jiao)酸(Suan)度(Du)((?)pH)(?)、(?)气(Qi)溶(Rong)胶(Jiao)含(Han)水(Shui)量(Liang)((?)ALWC)(?)和(He) NH3 浓(Nong)度(Du)的(De)相(Xiang)关(Guan)性(Xing)。(?)由(You)于(Yu)重(Zhong)度(Du)雾(Wu)霾(Mai)事(Shi)件(Jian)大(Da)多(Duo)发(Fa)生(Sheng)在(Zai)潮(Chao)湿(Shi)条(Tiao)件(Jian)下(Xia),(?)因(Yin)此(Ci)进(Jin)一(Yi)步(Bu)研(Yan)究(Jiu)了(Liao)高(Gao)相(Xiang)对(Dui)湿(Shi)度(Du)期(Qi)间(Jian),(?)ALWC、(?)pH 和(He) NH3 通(Tong)过(Guo) WSOC 水(Shui)相(Xiang)分(Fen)配(Pei)对(Dui) SOA 形(Xing)成(Cheng)的(De)影(Ying)响(Xiang)。(?)

 

 

从(Cong)上(Shang)图(Tu) d 可(Ke)以(Yi)看(Kan)出(Chu),(?)在(Zai)给(Gei)定(Ding)温(Wen)度(Du)下(Xia),(?)pH 值(Zhi)与(Yu) NH3 呈(Cheng)显(Xian)著(Zhu)正(Zheng)相(Xiang)关(Guan),(?)表(Biao)明(Ming)长(Chang)三(San)角(Jiao)地(Di)区(Qu)富(Fu)氨(An)环(Huan)境(Jing)可(Ke)能(Neng)降(Jiang)低(Di)了(Liao)气(Qi)溶(Rong)胶(Jiao)酸(Suan)度(Du),(?)导(Dao)致(Zhi) WSOCp 随(Sui)着(Zhuo) ALWC 和(He) pH 值(Zhi)的(De)增(Zeng)加(Jia)而(?)明(Ming)显(Xian)增(Zeng)加(Jia)((?)上(Shang)图(Tu) e,(?)f)(?)。(?)

 

NH3对(Dui)中(Zhong)国(Guo)SOA空(Kong)间(Jian)分(Fen)布(Bu)的(De)影(Ying)响(Xiang):(?)从(Cong)对(Dui)全(Quan)国(Guo)四(Si)大(Da)城(Cheng)市(Shi)群(Qun)区(Qu)的(De)空(Kong)间(Jian)特(Te)征(Zheng)分(Fen)析(Xi)发(Fa)现(Xian),(?)在(Zai)人(Ren)为(Wei)活(Huo)动(Dong)较(Jiao)少(Shao)的(De)西(Xi)北(Bei)地(Di)区(Qu)氨(An)气(Qi)浓(Nong)度(Du)最(Zui)低(Di),(?)而(?)农(Nong)业(Ye)活(Huo)动(Dong)较(Jiao)频(Pin)繁(Fan)的(De)华(Hua)北(Bei)地(Di)区(Qu)氨(An)气(Qi)排(Pai)放(Fang)量(Liang)最(Zui)高(Gao),(?)且(Qie)硝(Xiao)酸(Suan)盐(Yan)与(Yu)WSOCp在(Zai)细(Xi)颗(Ke)粒(Li)物(Wu)中(Zhong)的(De)占(Zhan)比(Bi)与(Yu)氨(An)气(Qi)浓(Nong)度(Du)的(De)变(Bian)化(Hua)特(Te)征(Zheng)一(Yi)致(Zhi),(?)进(Jin)一(Yi)步(Bu)揭(Jie)示(Shi)了(Liao)氨(An)气(Qi)对(Dui)SOA形(Xing)成(Cheng)的(De)重(Zhong)要(Yao)影(Ying)响(Xiang)。(?)

 

 

NH3对(Dui)中(Zhong)国(Guo)不(Bu)同(Tong)地(Di)区(Qu)WSOCp分(Fen)配(Pei)的(De)影(Ying)响(Xiang),(?) (a)全(Quan)国(Guo)四(Si)大(Da)城(Cheng)市(Shi)群(Qun)区(Qu)的(De)PM2.5中(Zhong)硝(Xiao)酸(Suan)盐(Yan)和(He)WSOCp占(Zhan)比(Bi),(?)(b)气(Qi)态(Tai)氨(An)气(Qi)浓(Nong)度(Du)的(De)空(Kong)间(Jian)变(Bian)化(Hua)特(Te)征(Zheng)。(?)

 

04

总(Zong)结(Jie)

 

NH3作(Zuo)为(Wei)大(Da)气(Qi)中(Zhong)的(De)主(Zhu)要(Yao)碱(Jian)性(Xing)气(Qi)体(Ti),(?)在(Zai)高(Gao)湿(Shi)条(Tiao)件(Jian)下(Xia),(?)一(Yi)方(Fang)面(Mian)是(Shi)通(Tong)过(Guo)改(Gai)变(Bian)气(Qi)溶(Rong)胶(Jiao)含(Han)水(Shui)量(Liang)和(He)酸(Suan)度(Du)影(Ying)响(Xiang)WSOC气(Qi)固(Gu)分(Fen)配(Pei),(?)另(Ling)一(Yi)方(Fang)面(Mian)通(Tong)过(Guo)酸(Suan)碱(Jian)中(Zhong)和(He)等(Deng)液(Ye)相(Xiang)反(Fan)应(Ying)促(Cu)进(Jin)WSOC的(De)反(Fan)应(Ying)性(Xing)吸(Xi)收(Shou)。(?)

 

 SOA是(Shi)我(Wo)国(Guo)PM2.5 的(De)重(Zhong)要(Yao)组(Zu)成(Cheng),(?)尤(You)其(Qi)是(Shi)在(Zai)雾(Wu)霾(Mai)期(Qi)间(Jian)。(?)而(?)氨(An)气(Qi)可(Ke)以(Yi)通(Tong)过(Guo)影(Ying)响(Xiang)WSOC气(Qi)固(Gu)分(Fen)配(Pei)促(Cu)进(Jin)SOA的(De)形(Xing)成(Cheng),(?)因(Yin)此(Ci)控(Kong)制(Zhi)氨(An)气(Qi)排(Pai)放(Fang)对(Dui)于(Yu)缓(Huan)解(Jie)我(Wo)国(Guo)大(Da)气(Qi)污(Wu)染(Ran)是(Shi)势(Shi)在(Zai)必(Bi)行(Xing)的(De)。(?)

 

 

 

Picarro高(Gao)精(Jing)度(Du)氨(An)气(Qi)分(Fen)析(Xi)仪(Yi)介(Jie)绍(Shao)

 

Picarro G2103是(Shi)一(Yi)款(Kuan)高(Gao)精(Jing)度(Du)在(Zai)线(Xian)氨(An)气(Qi)分(Fen)析(Xi)仪(Yi)。(?)其(Qi)业(Ye)内(Nei)领(Ling)先(Xian)的(De)性(Xing)能(Neng)优(You)势(Shi)主(Zhu)要(Yao)体(Ti)现(Xian)在(Zai):(?)低(Di)检(Jian)测(Ce)限(Xian)((?) ppt 级(Ji)别(Bie))(?)、(?)低(Di)漂(Piao)移(Yi)((?)一(Yi)整(Zheng)月(Yue)的(De)连(Lian)续(Xu)工(Gong)作(Zuo)中(Zhong)仅(Jin)漂(Piao)移(Yi)了(Liao) ±0.5 ppb)(?)、(?)低(Di)吸(Xi)附(Fu)快(Kuai)响(Xiang)应(Ying)((?)气(Qi)体(Ti)过(Guo)道(Dao)上(Shang)应(Ying)用(Yong)了(Liao)SilcoNert® 涂(Tu)层(Ceng))(?)、(?)抗(Kang)干(Gan)扰(Rao)气(Qi)((?)对(Dui)牲(Sheng)畜(Xu)建(Jian)筑(Zhu)物(Wu)中(Zhong)常(Chang)见(Jian)的(De)挥(Hui)发(Fa)性(Xing)有(You)机(Ji)化(Hua)合(He)物(Wu)没(Mei)有(You)干(Gan)扰(Rao))(?)、(?)水(Shui)汽(Qi)校(Xiao)准(Zhun)((?)可(Ke)报(Bao)告(Gao)准(Zhun)确(Que)的(De)干(Gan)摩(Mo)尔(?)分(Fen)数(Shu),(?)适(Shi)用(Yong)于(Yu)潮(Chao)湿(Shi)环(Huan)境(Jing)条(Tiao)件(Jian),(?)无(Wu)需(Xu)校(Xiao)正(Zheng)水(Shui)的(De)影(Ying)响(Xiang))(?)、(?)便(Bian)携(Xie)性(Xing)((?)该(Gai)分(Fen)析(Xi)仪(Yi)尺(Chi)寸(Cun)小(Xiao),(?)功(Gong)耗(Hao)要(Yao)求(Qiu)低(Di))(?)

 

鉴(Jian)于(Yu)以(Yi)上(Shang)Picarro氨(An)气(Qi)分(Fen)析(Xi)仪(Yi)卓(Zhuo)越(Yue)的(De)优(You)势(Shi),(?)欧(Ou)洲(Zhou)空(Kong)气(Qi)中(Zhong)氨(An)气(Qi)计(Ji)量(Liang)项(Xiang)目(Mu)、(?)英(Ying)国(Guo)国(Guo)家(Jia)物(Wu)理(Li)实(Shi)验(Yan)室(Shi)、(?)德(De)国(Guo)联(Lian)邦(Bang)物(Wu)理(Li)技(Ji)术(Shu)研(Yan)究(Jiu)院(Yuan)、(?)芬(Fen)兰(Lan)气(Qi)象(Xiang)研(Yan)究(Jiu)所(Suo)、(?)德(De)国(Guo)环(Huan)境(Jing)部(Bu)、(?)美(Mei)国(Guo)国(Guo)家(Jia)海(Hai)洋(Yang)和(He)大(Da)气(Qi)管(Guan)理(Li)局(Ju)、(?)上(Shang)海(Hai)环(Huan)境(Jing)科(Ke)学(Xue)研(Yan)究(Jiu)院(Yuan)、(?)中(Zhong)国(Guo)计(Ji)量(Liang)院(Yuan)等(Deng)国(Guo)内(Nei)外(Wai)机(Ji)构(Gou)均(Jun)采(Cai)用(Yong)Picarro的(De)CRDS技(Ji)术(Shu)测(Ce)量(Liang)NH3。(?)

 

仪(Yi)器(Qi)性(Xing)能(Neng)参(Can)数(Shu)如(Ru)下(Xia):(?)

 

 

 

 

 
 

 

致(Zhi)谢(Xie):(?)感(Gan)谢(Xie)华(Hua)东(Dong)师(Shi)范(Fan)大(Da)学(Xue)王(Wang)格(Ge)慧(Hui)教(Jiao)授(Shou)团(Tuan)队(Dui)、(?)文(Wen)章(Zhang)第(Di)一(Yi)作(Zuo)者(Zhe)吕(Lu)少(Shao)君(Jun)博(Bo)士(Shi)对(Dui)本(Ben)文(Wen)的(De)专(Zhuan)业(Ye)支(Zhi)持(Chi)!(?)

 

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